Expressions of ZEB2 and C-myc in epithelial ovarian cancer and their clinical significance / 南方医科大学学报

<p><b>OBJECTIVE</b>To investigate the expression patterns of ZEB2 and C-myc in epithelial ovarian cancer (EOC) and the associations between their expressions and the pathological features of EOC.</p><p><b>METHODS</b>The expressions of ZEB2 and C-myc proteins were detected immunohistochemically in 191 cervical cancer tissues and 13 normal ovarian tissues. The relationship between ZEB2 and C-myc protein expressions and the clinicopathological features of EOC was evaluated.</p><p><b>RESULTS</b>ZEB2 positive expression ratea in EOC tissues and normal ovarian tissues were 49.2% (94/191) and 30.8% (4/13), respectively (P=0.007), and C-myc positive expression rates in the two tissues were 53.9% (103/191) and 15.4% (2/13), respectively (P=0.001). A high expression of ZEB2 was positively correlated with the pathological type of the tumor (P=0.003), FIGO stage (P=0.028), T stage (P=0.002), and N stage (P=0.04), and a high expression of C-myc was positively correlated with FIGO stage (P=0.035), histological grade (P=0.039), and T stage (P=0.002). C-myc and ZEB2 expressions were positively correlated in EOC (P<0.001), and their co-expression in EOC was significantly correlated with T stage (R=0.358, P<0.001) and FIGO stage (P=0.008).</p><p><b>CONCLUSION</b>ZEB2 and C-myc can promote the progression, invasion and metastasis of EOC, and their combined detection may assist in early diagnosis of EOC.</p>

Correlation of the expressions of MMPs-9, TIMP-1 and TIMP-2 with cesarean section scar / 南方医科大学学报

<p><b>OBJECTIVE</b>To investigate the roles of MMPs-9, TIMP-1 and TIMP-2 in cesarean section scar healing.</p><p><b>METHODS</b>The expressions of the MMPs-9, TIMP-1 and TIMP-2 were detected by EnVision immunohistochemistry in 22 pregnant women with serious complications of the uterine scar, including 8 with early caesarean scar pregnancy (CSP) and 14 with full-term pregnancy undergoing hysterectomy for placenta previa or implanted placenta. Thirty-eight full-term pregnant women without serious complications of the uterine scar and 32 normal full-term pregnant women served as the control I and control II groups, respectively.</p><p><b>RESULTS</b>The expressions of MMPs-9 and TIMP-1 differed significantly between the 3 groups (P<0.05), whereas TIMP-2 did not (P>0.05). Spearman rank correlation analysis showed that the expression of MMPs-9 in the uterine scar tissues was positively correlated with poor uterine scar healing with the correlation coefficients of 0.309 and 0.643. An increased severity of poor healing scar was associated with a significantly increased expression of MMPs-9 (P<0.05).</p><p><b>CONCLUSION</b>The imbalanced expressions of MMPs-9 and TIMP-1 in injury repair can be related to poor uterine scar healing and CSP.</p>